Create and read files

This test times how long it takes to create and flush files to disk, and to read them back, with the Mac OS X cache bypassed so as to reflect actual hard drive performance. The test is run on empty freshly-formatted drive.

disktester create-files / read-files

Action

Time (seconds)

MB/sec

Create 5120 1MB files

67.8

75.5

Read 5120 1MB files

64.0

80.0

Create 512 10MB files

67.8

75.5

Read 512 10MB files

64.5

79.4

With the advent of “stutter” in mediocre solid state drives, it’s not a bad idea to look at the consistency of performance.